Cylinder for forming cartons, etc.



0ct.'7, 1930. F. w. ADSIT I CYLINDERS FOR FORMING- QARTONS, ETC

Filed April 11, 1929 2 Sheets-Sheet l Oct. 7, 1930. F. w. ADSIT 1,777,235

CYLINDERS FOR FORMING CARTONS, ETC

Filed April 11. 1929 2 Sheets-Sheet 2 6 4 l /4 K K raven-[fora- Fran k ids: t.

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atented Oct. 7, 1930 UNITED STATES PATENT, OFFICE FRANK W. ADSIT, OF ST. PAUL, MINNESOTA, ASSIGNOR TO ROTARY CARTON MACHINE COMPANY, OF MINNEAPOLIS, MINNESOTA CYLINDER FORMING CARTONS, ETC.

Applicatibn filed April 11,

paper stock. Among the objects of the invention are to provide a cylinder having a core member around which are a number of blocks which are detachably and interchangeably secured and to provide the blocks with rules which are detacha-bly and interchangeably secured and project out from the outer surfaces of the blocks.

The full objects and advantages of my invention will appear in connection with the detailed description thereof, and the novel features of my inventive idea will be particularly pointed out in the claims.

In the accompanying drawings which illustrate a practical embodiment of my invention, Fig. l is an isometric view of my im- Fig.

proved cylinder. Fig. 2 is a fragmentary cross sectional view of the cylinder taken on the line 22 of Fig. 1. mentary longitudinal sectionof the cylinder. 4 is a sectional elevational view showing the cylinder and a cooperating compressing cylinder. Fig. 5 is a detail View on an enlarged scale showing a ferrule which I enr ploy. Fig. 6 is a plan View showing the shape of the carton blanks after the paper stock has passed the improved cylinder.

Referring to the construction shown in the drawings, the numeral 10 designates a shaft which carries the improved cylinder. Mounted on the shaft 10 and preferably formed integrally therewith, there is an enlarged portion or core member 12 formed with a plurality of peripheral fiat faces 14, there being six of these faces in the construction shown so that the core member 12 is hexagonal. Longitudinal slots 16 are formed in the faces 14 these slots connecting with recesses 18 formed in the body portion of the member 12. A plurality of blocks 20 equal in number to the flat faces 14 are secured respectively to these faces. For the purpose of securing the blocks 20 detachably and interchangeably, they are provided with openings through which bolts 22 pass. The heads of the bolts 22 are countersunk into the outer Fig. 3 is a frag- 1929. Serial No. 354,328.

faces of the blocks 20 and they thread into square nuts 24 located in the recesses 18. The inner faces of the blocks 20 are flat except that they are provided with middle ribs'26 which extend part way into the grooves 16 whereby the blocks are centered in place without preventing the bolts 22 from being turned securely into the nuts 24. The blocks 20 have curved outer faces so that when a complete set of blocks have been secured in place, a cylindrical surface will be produced. The outer surfaces of the blocks 20 are pro vided with a plurality of slits for receiving the base portions of cutting rules 28 and creasing rules 30 so that these rules extend outradially- The two outer cutting rules for each block are arranged peripherally near the ends of the block so that they serve for trimming the margins of the paper stock P :on the lines 32 as indicated in Fig. 6. Thecutters for the edges of the flaps of the carton are irregular in shape so that small pieces 34 of the paper are cut out in order to leave the edges of the flaps inclined. The lines 36 indicate transverse lines of out while the lines 38 indicate lines ofcrease. The shape of the carton blanks will be readily apparent by observing in Fig. 6 that the double lines indicate lines of out while the single lines indicate lines of crease. The manner in which the rules are held in place will be understood from Figs. 4 and 5. Adjacent the rules when in place, there are recesses in the blocks 20 which receive split ferrules 40. At the bottom of these recesses, there are screwthreaded holes in the blocks adapted to receive the screwthreaded endsof screws 42. As willbe observed from Fig. 4, the heads 44 of these screws are tapered so that when the screws are turned down, a wedging action is exerted interiorly of the split ferrules 40 which expands the latter firmly into engagement with the sides of the rules. In making up the device, the creasing rules may be first secured in place and ground down the proper distance when the cylinder is rotatably mounted. The cutting rules may then be secured in place and ground so that they will project slightly more than thecreasing rules. Figs. 3 and'4 show a compressing cylinder 46 for cooperation with the cutting and creasing cylinder. The compression cylinder 46 is preferably provided with grooves 48 as shown in Fig. 3 adapted to register with the creasin rules only, the surface of the cylinder 46 memd' witha layer of'blanket materidl "B" such as paper.

The operation and advantages of .my vinvention will be readily understood in connection with the "foregoing description. U on loosening the two screws'22shown in Fig. 1, the block 20 can'be slid out from-engagement with the core member and replaced by another block. The same thing canxbe done with any one of the blocks 20. Upon loosening the proper screws 42, any one of the Miles can biz-removed and replaced by another l laim:

-1. A cylinder for forming cartons, etc., comprising acore member, a lurality of hlcchs havingouter curved sur aces, means fm' datlehably-and interchangeably securing said fbloeksaroundsaid core 'member, said blzodns containing :slits, rules having their inner-edges placed in said 'slits,.and expansion devices iformecuring said rules in said 12. A cylinder for forming cartons, etc. sing 8.1.601'8 :member, a plurality of silnving outer curved surfaces, means fiurfietmchably and interchangeably securing said abloeks "aroundsaid core member, said lilaeiseontaining slits and adjacent recesses, mleaihaving their inner edges placed in said slits; split ferrules in said recesses, and screws having tapered heads extending into I said fornrleswhereby the latter areexpanded into engagementwith the sides of: said rules when theinerews are turned down.

3. A cylinder for forming cartons, etc. comprising a core member having a plurality offiat faces around its periphery containing a luralityiof blocks having outer curved sur aces and inner flat surfaces for resting-upon the flat faces of the'core member, nuts in said recesses, screws passing through-said blocks with their heads countersunk therein, said screws turning into said nuts iomdetachably and interchangeably securing said blocks in place, and rules secured to=said .blocks.

ALA cylinder for forming cartons, etc. comprising a core member having a plurality of flat faces around its periphery containing recesses and slots leading into said recesses, a. lurality-of blocks having outer curved su faces and inner fiat faces for resting upon theflat surfaces of the core member, nuts in recesses, screws passing through said blocks-and slots with their heads countersunk [in the blocks, said screws turning into said nuts for detachably andinterchangeably securing said blocks in place, said blocks containing slits, and rules secured in said slits.

through said blocks andslots with their heads countersunk in the'blocks, said screws turning into said nutsnfor detachably and interchangeably securing said blocks in place, said blocks containing .slits, rules having their inner edges placed in said slits, and expansion devices for securing said rules in said slits.

' In testimony whereof I hereunto a'tlix my signature.

FRANK WV. ADSIT.

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